Zorb
/ˈzɔːb/originally NZ
noun
A large, transparent, inflatable PVC ball used in the sport of zorbing, containing an inner capsule into which a participant is secured and then rolled along the ground, down hills, etc.
- A trademark in New Zealand and the U.S..
Origin
1990s; earliest use found in South Bend (Indiana) Tribune. Apparently an arbitrary formation; compare orb.